AASHTO TP 76-10 PDF
Standard Method of Test for Measurement of Tire/Pavement Noise Using the On-Board Sound Intensity (OBSI) Method
standard by American Association of State and Highway Transportation Officials, 2010
This test method describes the procedures for measuring tire/pavement noise using the on-board sound intentisy (OBSI) method and the procedures for verification of the measurement system. The test method provides an objective measure of the acoustic power per unit area at points near the tire/pavement interface.
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